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CSCve37570 - TURN with static NAT may result in media packets physically sent out to own Natted address

gfolens
Level 4
Level 4

‎04-29-2019 12:46 AM

I'm a bit confused with this bug.

Is it also valid for Expressway-E configurations with dual network interfaces?

Seems this bug is as from version X8.9.2. So previous version did not suffer from this bug?

Will this behaviour be corrected in a future release?

I'm using Exp-E without a FW. So no NAT reflection possible I guess? No workaround possible?

1 person had this problem
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2 Replies 2

Deepak Kumar
VIP Alumni
VIP Alumni

‎04-29-2019 01:29 AM

Hi, 

I'm a bit confused with this bug.
Is it also valid for Expressway-E configurations with dual network interfaces?

Yes, you can. If you trying with single interface and E is behind the NAT then you must have Advanced Network License.

Regards,
Deepak Kumar,
Don't forget to vote and accept the solution if this comment will help you!

gfolens
Level 4
Level 4
In response to Deepak Kumar

‎04-29-2019 02:05 AM

I cannot do that. I need to isolate/protect my Exp-C and CUCM from the Internet. So I need 2 separate interfaces on Exp-E. One for LAN and one for connecting to the SDSL router.
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